Question

A 3 kg hammer's is used to drive a nail into the
block of hard wood if at the time of impact, hammers
speed is 5 ms' and it drives the nail 1cm into the
block, the impulse acting is​

Answer 1

Answer: 15 Ns

Explanation:

Impulse = Force x Time of Impact

In the other way, the impulse is also the change in momentum.

So Impulse = Mass x change in velocity

 I = M x (v(final) - v (final))

   = 3 N x (0 - 5) s

   = 15 Ns (Answer)